Re: initdb failure (was Re: [GENERAL] sequence's plpgsql)

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, Tim McAuley <mcauleyt(at)tcd(dot)ie>, pgsql-hackers(at)postgreSQL(dot)org, pgsql-jdbc(at)postgreSQL(dot)org
Subject: Re: initdb failure (was Re: [GENERAL] sequence's plpgsql)
Date: 2003-09-26 18:29:53
Message-ID: 200309261829.h8QITr322758@candle.pha.pa.us
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Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Perhaps we can throw a warning rather than an error, and adjust initdb
> > to be consistent.
>
> I like the idea of reducing the newline consistency check to a warning.
> There is one thing we'd have to watch for though (it's already an issue
> but would become a bigger one): client-side COPY code had better be
> prepared to absorb backend Notice messages while processing COPY IN.
> Currently libpq doesn't read input data at all during a COPY IN loop,
> which means that if the COPY generates more than a few K of warning
> messages, the backend gets blocked on a full pipe and the whole
> operation locks up. I have been meaning to fix that in libpq anyway,
> but what other client libraries might have the same issue? Anyone know
> whether JDBC would need a similar fix?

Wow, that sounds big. The ERROR will only happen once, while the
WARNING could happen a lot --- we could add code to throw the WARNING
only once per COPY command --- that would probably make sense. I don't
see how we could get all clients to handle this for 7.4, particularly
clients from previous releases.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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